Crude-oil burner.



E. N, SHAW..

GRUDE OIL BURNER.

APPLIQATION FILED MAY?, 1914.

Patented Febf, 1915 Gl/Qgooao Y entre s y MMERSON N. SHAW, 0F SANFRANCISC'O, CALIFQRNA.

CRUDE-OIL BURNER.

meters.

S'iieeication of Letters Patent.

Patented lieb'. tl, i915.

Application filed May 7. 1914. Serial No.. 836,925.

To uil rta/loin. t may concern;

Be" it known that I, Enannson N. SHAW, a citizen of the United States of America, and a'resident of San Francisco, county of San Francisco, State of California, have invented certain new and useful Improvements in Crude-0il Burners, of which the following is a full and clear specification, reference being had to the accompanying' drawings, in which-f Figure l is a longitudinal sectional View of a burner embodying Inj/invention in one of its forms; and Fig. 2 is a detail side elevation of the oil tube or cylinder.

This invention has relation to that type of burners adapted for use with crude or other heavy oils in which the oil is atomized by means of a supply of steam and the object of this invention is to greatly increase the etlicieney of the burner, to reduce noise of operation to a minimum, and to mate rially simplify the construction and adjustment'of the burner, as more fully hereinafter set forth.

The main or outer casing yof the burner consists of a tube a. to whose forward end is screwed a short cylinder 7J and to whose rear end is secured a cylinder c. Screwed into the forward end of the coupling tube Z is a nozzle d, and fastened to the outer end of the tube c, by means of flanges and bolts is a cylinder e, a suitable stuing box being formed between the parts c and c, through lwhich stuffing box f is adapted to slide a tube g. Formed on the rear end of the cylinder c is a cap it through which extends a screw stem z', a stutling box j being provided to make a steam and oil-tight joint between the` rod and the cap. The outer end of the rod is provided. with anoperating handwheel while the inner end of the rod is attached to the outer end of ltube g.

An oil pipe is is attached to the cylinderA chamber formed between the tube g and the part e of the casing, and from this cylinder chamber a series of spil-ally arranged holes Z communicate with the interior of tube g. At a point beyond the stuffing boi; f the tube g is in constant eommunication with the space between it and the parts c and a by means of a spirally arranged series of openings m, said spacev being connected to a steam supply n.

Fastened to the front end of the tube g is acylindrical plug o provided on its exterior with radial longitudinal ribs p, which ribs bear against the. interior of the tube a and guide the tube g in its back. and forth more. ments. Formed on the forward end of the plug o is a. valve g which consists substantially of a circular head larger in diameter than the interior diameter of tube va and rounded annularly at fr, this rounded surface r being connected to the cylindrical surface of the plug at the outer end of the plug. The adjacent end of the tube a, is similarly rounded, and the inner face of the tube 'b is concaved at a point adjacent to the said inner end of tube a.

lt will be seen that the oil enters the tube g through the openings Z and makes its enittherefrom through the opei'iiu -J fm, into the steam space, and that this mixed oil and steam are carried forward and ej eeted at the nozzle.

It is preferred that the capacity of the oil supply and the openings Z shall be sufrieieutly greater than the capacity of the exit holes m that the tube g shall be practically lilled with oil at all times, so `that the oil will be forced out of said tube into thesteam chan'iber in a series of jets issuing at all points around said chamber. The hot steam converts the oil in the tube 9' into a foainy condition and lthis foam is ejected through the openings m, where it is atomized by the steam. This atoinized oil is carried by the steam past the valve g. As this mixture passes the valve, the rounded shape of the telve surface fr, together with the concaye formation of the interior of the tube b, causes the mixture to be violently .swirled about in the chamber beyond the Valve, thus bringing about a thorough admixture of the oil and the steam before the mixture issues from the nozzle. lt will, therefore, be seen 'hollow nozzle, form a mixing chamber immediately adjacent to the exit of the nozzle. The nozzle is shown substantiallyrr spherical, but it will be understood that the shape may be greatly varied. The exit slot in the non zle extends across the center of the nozzle, but it will be understood that it may extend in any direction and be located in any part of the nozzle. It will be seen that the nozzle slot is beveled inwardly so as to bring its outer corner to an edge. thereby insuring a flame of uniformity.

lt will be understood that by adjusting the tube g for 'ardly and baokwardly,` the amount'of mixture passing into the' nozzle Sli lll(

lll

can be determined, while, by menipulatig the valves of the steam sind oil pipes as well.

as the pressure of the steam and oil, the relative amounts of oil and steam may be `xjendily regulated.l

Hn'vhg thus described my nventomwhat I claim is: In a burer of the class set forth, the combination of a tubular casing provided at oneend with :L nozzle and having lts other endv closed and also provided near its rear end with an interior stufing box, a tube inc'losed Within said casingond slidable back and forth through said stung box, means for sliding the tube back and forth, a nozzle Valve at the inner end of theV tube, vsaid. tube i momie 'beig provided with perforatons et the EMMERSON N. SHAW.I

- Witnesses:

GEO. L.y STEWART, PARK H, TYPJLELL. 

